Cheapest one-way flights from San Diego to Phoenix in April from 20€

AirHint found the following cheapest one-way flights from San Diego (SAN) to Phoenix (PHX) in April 2026 (see full year).

One-Way flights

28 Apr Frontier Airlines direct
20 Apr Frontier Airlines direct
21 Apr Frontier Airlines direct
13 Apr Frontier Airlines direct
23 Apr Frontier Airlines direct
22 Apr Frontier Airlines direct
19 Apr Frontier Airlines direct
17 Apr Southwest Airlines direct
11 Apr Frontier Airlines direct
07 Apr Frontier Airlines direct

Also check the deals for return flights from San Diego to Phoenix in April.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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